DEpends on the nutes, and what your mix is.
The general rule is that unless a nute system was SPECIFICALLY designed to be mixed in a reservoir for later use, use it IMMEDIATELY.
Try doing the calculations to got numbers for smaller mix volumes. A plastic syringe, turkey baster, or eyedropper with mL marks is very useful in making smaller volume dilutions. You can find them at the pharmacy or cooking gadget store. I use a 'flavor injector' with the needle removed and replaced by a piece of airline hose to measure small volumes of nute solutions.
stinkyattic Reviewed by stinkyattic on . wasting nutes i dont like wasting nutes down the drain every time i feed my plants. or having to mix them every time. is it ok to hold my nutrient solution for a day or to and use it then? will it hold its nutritional properties, or will it go to shit and be bad for the plants. im using fox farm grow big and big bloom. and thrive alive B1 sometimes. Rating: 5